+++ /dev/null
-/*
- * sound/oss/dev_table.c
- *
- * Device call tables.
- *
- *
- * Copyright (C) by Hannu Savolainen 1993-1997
- *
- * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL)
- * Version 2 (June 1991). See the "COPYING" file distributed with this software
- * for more info.
- */
-
-#include <linux/init.h>
-
-#include "sound_config.h"
-
-struct audio_operations *audio_devs[MAX_AUDIO_DEV];
-EXPORT_SYMBOL(audio_devs);
-
-int num_audiodevs;
-EXPORT_SYMBOL(num_audiodevs);
-
-struct mixer_operations *mixer_devs[MAX_MIXER_DEV];
-EXPORT_SYMBOL(mixer_devs);
-
-int num_mixers;
-EXPORT_SYMBOL(num_mixers);
-
-struct synth_operations *synth_devs[MAX_SYNTH_DEV+MAX_MIDI_DEV];
-EXPORT_SYMBOL(synth_devs);
-
-int num_synths;
-
-struct midi_operations *midi_devs[MAX_MIDI_DEV];
-EXPORT_SYMBOL(midi_devs);
-
-int num_midis;
-EXPORT_SYMBOL(num_midis);
-
-struct sound_timer_operations *sound_timer_devs[MAX_TIMER_DEV] = {
- &default_sound_timer, NULL
-};
-EXPORT_SYMBOL(sound_timer_devs);
-
-int num_sound_timers = 1;
-
-
-static int sound_alloc_audiodev(void);
-
-int sound_install_audiodrv(int vers, char *name, struct audio_driver *driver,
- int driver_size, int flags, unsigned int format_mask,
- void *devc, int dma1, int dma2)
-{
- struct audio_driver *d;
- struct audio_operations *op;
- int num;
-
- if (vers != AUDIO_DRIVER_VERSION || driver_size > sizeof(struct audio_driver)) {
- printk(KERN_ERR "Sound: Incompatible audio driver for %s\n", name);
- return -EINVAL;
- }
- num = sound_alloc_audiodev();
-
- if (num == -1) {
- printk(KERN_ERR "sound: Too many audio drivers\n");
- return -EBUSY;
- }
- d = (struct audio_driver *) (sound_mem_blocks[sound_nblocks] = vmalloc(sizeof(struct audio_driver)));
- sound_nblocks++;
- if (sound_nblocks >= MAX_MEM_BLOCKS)
- sound_nblocks = MAX_MEM_BLOCKS - 1;
-
- op = (struct audio_operations *) (sound_mem_blocks[sound_nblocks] = vzalloc(sizeof(struct audio_operations)));
- sound_nblocks++;
- if (sound_nblocks >= MAX_MEM_BLOCKS)
- sound_nblocks = MAX_MEM_BLOCKS - 1;
-
- if (d == NULL || op == NULL) {
- printk(KERN_ERR "Sound: Can't allocate driver for (%s)\n", name);
- sound_unload_audiodev(num);
- return -ENOMEM;
- }
- init_waitqueue_head(&op->in_sleeper);
- init_waitqueue_head(&op->out_sleeper);
- init_waitqueue_head(&op->poll_sleeper);
- if (driver_size < sizeof(struct audio_driver))
- memset((char *) d, 0, sizeof(struct audio_driver));
-
- memcpy((char *) d, (char *) driver, driver_size);
-
- op->d = d;
- strlcpy(op->name, name, sizeof(op->name));
- op->flags = flags;
- op->format_mask = format_mask;
- op->devc = devc;
-
- /*
- * Hardcoded defaults
- */
- audio_devs[num] = op;
-
- DMAbuf_init(num, dma1, dma2);
-
- audio_init_devices();
- return num;
-}
-EXPORT_SYMBOL(sound_install_audiodrv);
-
-int sound_install_mixer(int vers, char *name, struct mixer_operations *driver,
- int driver_size, void *devc)
-{
- struct mixer_operations *op;
-
- int n = sound_alloc_mixerdev();
-
- if (n == -1) {
- printk(KERN_ERR "Sound: Too many mixer drivers\n");
- return -EBUSY;
- }
- if (vers != MIXER_DRIVER_VERSION ||
- driver_size > sizeof(struct mixer_operations)) {
- printk(KERN_ERR "Sound: Incompatible mixer driver for %s\n", name);
- return -EINVAL;
- }
-
- /* FIXME: This leaks a mixer_operations struct every time its called
- until you unload sound! */
-
- op = (struct mixer_operations *) (sound_mem_blocks[sound_nblocks] = vzalloc(sizeof(struct mixer_operations)));
- sound_nblocks++;
- if (sound_nblocks >= MAX_MEM_BLOCKS)
- sound_nblocks = MAX_MEM_BLOCKS - 1;
-
- if (op == NULL) {
- printk(KERN_ERR "Sound: Can't allocate mixer driver for (%s)\n", name);
- return -ENOMEM;
- }
- memcpy((char *) op, (char *) driver, driver_size);
-
- strlcpy(op->name, name, sizeof(op->name));
- op->devc = devc;
-
- mixer_devs[n] = op;
- return n;
-}
-EXPORT_SYMBOL(sound_install_mixer);
-
-void sound_unload_audiodev(int dev)
-{
- if (dev != -1) {
- DMAbuf_deinit(dev);
- audio_devs[dev] = NULL;
- unregister_sound_dsp((dev<<4)+3);
- }
-}
-EXPORT_SYMBOL(sound_unload_audiodev);
-
-static int sound_alloc_audiodev(void)
-{
- int i = register_sound_dsp(&oss_sound_fops, -1);
- if(i==-1)
- return i;
- i>>=4;
- if(i>=num_audiodevs)
- num_audiodevs = i + 1;
- return i;
-}
-
-int sound_alloc_mididev(void)
-{
- int i = register_sound_midi(&oss_sound_fops, -1);
- if(i==-1)
- return i;
- i>>=4;
- if(i>=num_midis)
- num_midis = i + 1;
- return i;
-}
-EXPORT_SYMBOL(sound_alloc_mididev);
-
-int sound_alloc_synthdev(void)
-{
- int i;
-
- for (i = 0; i < MAX_SYNTH_DEV; i++) {
- if (synth_devs[i] == NULL) {
- if (i >= num_synths)
- num_synths++;
- return i;
- }
- }
- return -1;
-}
-EXPORT_SYMBOL(sound_alloc_synthdev);
-
-int sound_alloc_mixerdev(void)
-{
- int i = register_sound_mixer(&oss_sound_fops, -1);
- if(i==-1)
- return -1;
- i>>=4;
- if(i>=num_mixers)
- num_mixers = i + 1;
- return i;
-}
-EXPORT_SYMBOL(sound_alloc_mixerdev);
-
-int sound_alloc_timerdev(void)
-{
- int i;
-
- for (i = 0; i < MAX_TIMER_DEV; i++) {
- if (sound_timer_devs[i] == NULL) {
- if (i >= num_sound_timers)
- num_sound_timers++;
- return i;
- }
- }
- return -1;
-}
-EXPORT_SYMBOL(sound_alloc_timerdev);
-
-void sound_unload_mixerdev(int dev)
-{
- if (dev != -1) {
- mixer_devs[dev] = NULL;
- unregister_sound_mixer(dev<<4);
- num_mixers--;
- }
-}
-EXPORT_SYMBOL(sound_unload_mixerdev);
-
-void sound_unload_mididev(int dev)
-{
- if (dev != -1) {
- midi_devs[dev] = NULL;
- unregister_sound_midi((dev<<4)+2);
- }
-}
-EXPORT_SYMBOL(sound_unload_mididev);
-
-void sound_unload_synthdev(int dev)
-{
- if (dev != -1)
- synth_devs[dev] = NULL;
-}
-EXPORT_SYMBOL(sound_unload_synthdev);
-
-void sound_unload_timerdev(int dev)
-{
- if (dev != -1)
- sound_timer_devs[dev] = NULL;
-}
-EXPORT_SYMBOL(sound_unload_timerdev);
-
git.samba.org / sfrench / cifs-2.6.git / blobdiff